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News & activity updates from Sotara volcano

Sotará volcano (Colombia) activity update

Thursday Sep 13, 2012 10:05 AM | BY: T

Seismic signal fromSotará late on 12 Sep (SOSO station, INGEOMINAS)
Seismic signal fromSotará late on 12 Sep (SOSO station, INGEOMINAS)
Swarms of small quakes and longer tremor pulses appear on the seismic recordings and seem elevated compared to the recent days.
Previous news
Current seismogram from Sotará (SOSO station, INGEOMINAS)
Wednesday, Sep 12, 2012
Seismic unrest continues at Sotará. In the week between 5-11 Sep there were in total 82 events, INGEOMINAS reports. This includes about 50 small quakes of magnitudes between 0.1-1.6 at shallow depths of 1-6 km in an area 1-2 km north of the summit. [more]
Small seismic swarm yesterday (SOSO station, INGEOMINAS)
Tuesday, Sep 11, 2012
Seismicity is up and down at Sotará volcano with periods of increased activity and small quake swarms of several hours alternating with quiet intervals. [more]
Wednesday, Sep 05, 2012
Weak seismic unrest continues. A number of quakes between magnitudes 0.1-1 were recorded 1-2 km north of the summit in an area at 4-5 km depth. Weak inflation of the NE sector of the volcano continues to be visible. [more]
Current seismic signal (SOSO station) from Sotará (INGEOMINAS)
Wednesday, Aug 29, 2012
A total of 71 volcanic quakes were recorded over the past week. Most were very week, but 6 had magnitudes between 0.1 and 1.3 and were located 1-2 km N of the summit at depths between 2-3 km. A possible inflation of the NE sector of the volcano is being detected on tilt meters. [more]
Current seismogram from Sotará (SOSO station, INGEOMINAS)
Wednesday, Aug 22, 2012
Seismicity has been on the increase at the volcano. Over the past 7 days, INGEOMINAS registered 151 volcano-tectonic quakes, out of which 15 were of significant size (magnitudes 0-1) and located at shallow depth between 2 and 6 km in an area 0.1-5 km NE from the the summit. Visual observations show no signs of surface activity. [more]
Sotará volcano
stratovolcano 4400+ m / 14,436 ft
Colombia, 2.11°N / -76.59°W
Current status: normal or dormant (1 out of 5)
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